Mitsubishi Electric MELSERVO-JN Series, Instruction Manual

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10 - 5
10. CHARACTERISTICS
(2) Dynamic brake time constant
The following shows necessary dynamic brake time constant for the equations (10.2).
4500
0
0 1000 2000
5
10
15
3000 4000
13
053
23
Speed [r/min]
Tim
e co
nstan
t [ms]
20
25
43
4500
0
0 1000 2000
5
10
15
3000 4000
43
053
13
23
Speed [r/min]
20
25
Tim
e co
nstan
t
[m
s]
HF-KN series HF-KP series
4500
0
0 1000 2000
5
10
15
3000 4000
43
053
13
23
Speed [r/min]
Time constant [ms]
20
25
HG-KR series
10.3.2 The dynamic brake at the load inertia moment
Use the dynamic brake under the load to motor inertia moment ratio indicated in the following table. If the load
to motor inertia moment is higher than this value, the dynamic brake may burn. If there is a possibility that the
load to motor inertia moment may exceed the value, contact your local sales office.
The values of the load to motor inertia moment ratio in the table are the values at the maximum rotation speed
of the servo motor.
Servo amplifier
Servo motor
HF-KN HF-KP G1/G5/G7 HG-KR G1/G5/G7
MR-JN-10A (1) 30
MR-JN-20A (1) 30
MR-JN-40A 30